A gas boiler must be serviced at least once a year by a qualified professional. In France, this visit is mandatory for all boilers with an output between 4 and 400 kW. It ensures the appliance is working correctly, measures pollutant emissions, and optimizes settings to reduce your gas consumption.
Ideally, schedule the maintenance before the heating season, between spring and early autumn. This avoids breakdowns when you need heating the most and gives the technician time to order any necessary parts. Regular maintenance extends the boiler's lifespan, improves your comfort, and enhances your daily safety.
During the annual visit, the heating engineer cleans the burner, the heating body, and the safety components, then checks the draft, circuit tightness, and overall boiler performance. At the end of the intervention, they must provide you with a maintenance certificate to be kept carefully, as it may be requested by your insurer in the event of a claim.
In addition to this mandatory visit, monitor certain warning signs: unusual noises, suspicious odors, lukewarm radiators, or rising gas consumption. If you notice any of these symptoms, do not wait for the next annual deadline to call in a professional. Diligent monitoring of your gas boiler is a worthwhile investment for your safety, comfort, and energy bills.
